What Was the Holocaust?
Gail Herman, Who HQ & Jerry Hoare
What Was Pompeii?
Jim O'Connor, Who HQ & John Hinderliter
What Were the Salem Witch Trials?
Joan Holub, Who HQ & Dede Putra
What Was the Berlin Wall?
Nico Medina, Who HQ & Stephen Marchesi
What Is Climate Change?
Gail Herman, Who HQ & John Hinderliter
What Were the Twin Towers?
Jim O'Connor, Who HQ & Ted Hammond
What Was the Plague?
Roberta Edwards, Who HQ & Dede Putra
What Is LEGO?
Jim O'Connor, Who HQ & Ted Hammond
What Was the Vietnam War?
Jim O'Connor, Who HQ & Tim Foley
What Is NASA?
Sarah Fabiny, Who HQ & Ted Hammond